Hey there!
In order to solve these problems where you're given a bunch of variables and no numbers, all you have to do is push around the variables until you get what you're solving for (x) on one side of the = and the rest on the other side. This will be your answer. You can use multiplication, division, addition, and subtraction to solve. Remember that you have to what you do on one side to both sides.




Your answer will be

.
Hope this helped you out! :-)
Answer: 57.5% of students preferred pizza
Step-by-step explanation:
i just did it and got it correct
3/7
6 divided by 2 equals 3
14 divided by 2 equals 7
16.25 I did this and put 15.00 then it was wrong.
Hope this helps
<u>Answer:</u>
<u>Step-by-step explanation:</u>
-4x - 9y = -25
7(-4x - 9y = -25)
-28x - 63y = -175
<u>Now, let's substitute the value of y into the first equation.</u>
- => -7x - 2y = 25
- => -7x - 2(5) = 25
- => -7x - 10 = 25
- => -7x = 35
- => x = -5
<u>Now, let's check our answer to make sure our answer is correct.</u>
<u>Check:</u>
- -4x - 9y = -25
- => -4(-5) - 9(5) = -25
- => 20 - 45 = -25
- => -25 = -25
Hence, this is proved correct.
Hoped this helped.
